<template>
  <div class="full-width">
    <div>
      <el-radio-group v-model="isCollapse" style="margin-bottom: 20px;">
        <el-radio :label="false">展开</el-radio>
        <el-radio :label="true">收起</el-radio>
      </el-radio-group>
    </div>
    <div>
      <el-menu
        default-active="1-4-1"
        class="el-menu-vertical-demo"
        :collapse="isCollapse"
        @open="handleOpen"
        @close="handleClose"
      >
        <el-submenu index="1">
          <template slot="title">
            <i class="el-icon-location" />
            <span slot="title">导航一</span>
          </template>
          <el-menu-item-group>
            <span slot="title">分组一</span>
            <el-menu-item index="1-1">选项1</el-menu-item>
            <el-menu-item index="1-2">选项2</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="分组2">
            <el-menu-item index="1-3">选项3</el-menu-item>
          </el-menu-item-group>
          <el-submenu index="1-4">
            <span slot="title">选项4</span>
            <el-menu-item index="1-4-1">选项1</el-menu-item>
          </el-submenu>
        </el-submenu>
        <el-menu-item index="2">
          <i class="el-icon-menu" />
          <span slot="title">导航二</span>
        </el-menu-item>
        <el-menu-item index="3" disabled>
          <i class="el-icon-document" />
          <span slot="title">导航三</span>
        </el-menu-item>
        <el-menu-item index="4">
          <i class="el-icon-setting" />
          <span slot="title">导航四</span>
        </el-menu-item>
      </el-menu>

    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isCollapse: true
    }
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath)
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath)
    }
  }
}
</script>

<style>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
</style>
